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#pragma once
#include <al/types.h>
#include <al/atomic.h>
// Synced:
// () = other clients only
// Pause:
// - User input -> start fade and request pause from server
// - Get response -> (start fade) arm pause or reseek if late
// Resume:
// - User input -> request resume from server
// - Get response -> arm resume, apply offset to queued
// Next/Prev:
// - User input -> start fade request next from server
// - Get response -> (start fade) arm pause, arm resume on next, then swap on pause
//
// Local:
// Pause:
// - User input -> start fade and pause immediately
// Reumse:
// - User input -> resume and fade in
// Next/Prev:
// - User input -> swap
#define CAMU_PTS_PAUSED ((f64)0xffffffffffffffff)
#define CAMU_PTS_SIGNAL_PAUSE ((f64)0x7fffffffffffffff)
#define CAMU_PTS_CONSIDER_PAUSED(pts) (pts == CAMU_PTS_PAUSED || pts == CAMU_PTS_SIGNAL_PAUSE)
enum {
CAMU_CLOCK_PAUSED = 0
};
struct camu_clock {
f64 base;
f64 offset;
atomic(f64) tick;
atomic(f64) pause;
atomic(bool) external_pause;
f64 paused_at;
atomic(f64) last_pts;
void (*callback)(void *, u8);
void *userdata;
};
void camu_clock_init(struct camu_clock *clock, void (*callback)(void *, u8), void *userdata);
void camu_clock_set(struct camu_clock *clock, f64 base);
void camu_clock_offset(struct camu_clock *clock, f64 offset);
void camu_clock_seek(struct camu_clock *clock, f64 base, u64 target);
bool camu_clock_pause(struct camu_clock *clock, u64 target);
void camu_clock_external_pause(struct camu_clock *clock);
void camu_clock_resume(struct camu_clock *clock, u64 target);
f64 camu_clock_get_base_pts(struct camu_clock *clock);
f64 camu_clock_get_pts(struct camu_clock *clock, f64 latency, bool allow_set, bool *armed_for_pause);
f64 camu_clock_get_last_pts(struct camu_clock *clock);
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